Security readout for executives and security teams
Plain-English summary
CVE-2024-40711 is a critical Veeam deserialization flaw that can let an unauthenticated remote attacker run code. Because CISA lists it in KEV, organizations should treat exposed or unpatched Veeam backup systems as urgent risk.
Executive priority
Treat this as urgent. It affects backup infrastructure, has unauthenticated remote code execution characteristics, and is listed by CISA as known exploited. Remediation should be tracked at executive risk level until verified closed.
Technical view
The CVE describes CWE-502 deserialization of untrusted data leading to unauthenticated RCE, with CVSS 9.8 network attack characteristics. The bundle identifies Veeam Backup and Recovery 12.1.2 as affected and references Veeam KB4649 and watchTowr research.
Likely exposure
Exposure is most concerning where Veeam Backup and Recovery 12.1.2 is reachable from untrusted networks or not aligned with Veeam KB4649 guidance. Backup infrastructure often has high privileges, making compromise operationally severe.
Exploitation context
Active exploitation is supported by CISA KEV listing for CVE-2024-40711. Public research from watchTowr is cited, but this assessment does not provide exploit mechanics or assume exploitation beyond the KEV evidence.
Researcher notes
Evidence confirms CWE-502, unauthenticated RCE impact, CVSS 9.8, affected Veeam 12.1.2, and KEV status. The provided bundle does not include detailed patch version text, so remediation should be verified directly against Veeam KB4649.
Mitigation direction
- Identify Veeam Backup and Recovery 12.1.2 deployments.
- Follow Veeam KB4649 for vendor-approved updates or mitigations.
- Restrict Veeam service exposure to trusted administrative networks.
- Prioritize remediation for internet-facing or cross-network reachable backup servers.
- Monitor CISA KEV due dates and internal remediation ownership.
Validation and detection
- Inventory Veeam product versions against the affected 12.1.2 entry.
- Confirm whether affected services are reachable from untrusted networks.
- Verify remediation status against Veeam KB4649, not informal guidance.
- Review security logs for suspicious access to Veeam backup infrastructure.
- Document compensating controls if immediate vendor remediation is delayed.
Public sources used
Michael Williams reviewed this cited source version on .
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2024-40711 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.0)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
9.8CriticalVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.veeam.com/kb4649CVE reference
- https://labs.watchtowr.com/veeam-backup-response-rce-with-auth-but-mostly-without-auth-cve-2024-40711-2/CVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40711CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.